Constitutional practicability of referendum on EU Constitution

Yes. Binding referendum provided if constitutional amendment effected. Otherwise mandatory and binding referendum provided if demanded from at least 30 members of parliament.

Approval of international treaties without any transfer of sovereignty

Majority of votes from parliament, Art. 86 ConstSlovenia.

Approval of transfer of sovereignty without effect of constitutional amendment

Majority of 2/3 from members of parliament. Before ratification binding referendum on the transfer of sovereignty can be called by the parliament, Art. 3a ConstSlovenia.

Approval of transfer of sovereignty with effect of constitutional amendment

Not expressly regulated but constitutional amendment required.

Approval of constitutional amendment

Majority of 2/3 from members of parliament after proposal of 20 members of parliament, the government or at least 30.000 of the electorate confirmed by the parliament with majority of 2/3 of the votes, Art. 168, 169 ConstSlovenia. If demanded by at least 30 members of parliament the proposed amendment has to be approved by binding referendum in that more than 1/2 of the electorate participated with the majority of votes, from the majority of votes, Art. 170 ConstSlovenia.

Other constitutional regulations about referendums

A binding referendum on laws can be called by the parliament. It is mandatory if demanded by 1/3 from the members of parliament, the council or 40.000 of the electorate, Art. 90 Const Slovenia. Laws can also be initiated by at least 5.000 of the electorate, Art. 88 ConstSlovenia.